Reflective chiral meta-holography: multiplexing holograms for circularly polarized waves.

ABSTRACT: By allowing almost arbitrary distributions of amplitude and phase of electromagnetic waves to be generated by a layer of sub-wavelength-size unit cells, metasurfaces have given rise to the field of meta-holography. However, holography with circularly polarized waves remains complicated as the achiral building blocks of existing meta-holograms inevitably contribute to holographic images generated by both left-handed and right-handed waves. Here we demonstrate how planar chirality enables the fully independent realization of high-efficiency meta-holograms for one circular polarization or the other. Such circular-polarization-selective meta-holograms are based on chiral building blocks that reflect either left-handed or right-handed circularly polarized waves with an orientation-dependent pha

SUBMITTER: Wang Q 

PROVIDER: S-EPMC6106984 | biostudies-literature | 2018

REPOSITORIES: biostudies-literature